// Copyright (c) 1998-1999 Microsoft Corporation
/******************************************************************************
*
* HELPERS.C
*
* Various helper functions.
*
*
*******************************************************************************/
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
//#include <ntddvdeo.h>
#include <ntddkbd.h>
#include <ntddmou.h>
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <winstaw.h>
#include <utilsub.h>
#include <tchar.h>
#include "utilsubres.h" // resources refrenced in this file.
#define PERCENT TEXT('%')
#define NULLC TEXT('\0')
#define MAXCBMSGBUFFER 2048
TCHAR MsgBuf[MAXCBMSGBUFFER];
HANDLE NtDllHandle = NULL;
TCHAR *
mystrchr(TCHAR const *string, int c);
/* makarp, #259849
we cannot put an rc file in this file.
so we need to keep all the string resources referenced in this file in
utildll.dll.
*/
/* this function returns the string resource from utildll.dll */
BOOL GetResourceStringFromUtilDll(UINT uID, LPTSTR szBuffer, int iBufferSize)
{
HINSTANCE hUtilDll = LoadLibrary(TEXT("utildll.dll"));
if (hUtilDll)
{
int iReturn = LoadString(hUtilDll, uID, szBuffer, iBufferSize);
int iLastError = GetLastError();
FreeLibrary( hUtilDll );
if ( iReturn != 0 && iReturn < iBufferSize)
{
// we have got the string
return TRUE;
}
else if (iReturn == 0)
{
_ftprintf( stderr, _T("GetResourceStringFromUtilDll: LoadString failed, Error %ld\n"), iLastError);
return FALSE;
}
else
{
// we have provided insufficient buffer.
_ftprintf(stderr, _T("GetResourceStringFromUtilDll: Insufficient buffer for resource string"));
return FALSE;
}
}
else
{
_ftprintf(stderr, _T("GetResourceStringFromUtilDll: LoadLibrary failed for utildll.dll, %ld"), GetLastError());
return FALSE;
}
}
/* this function is used internally.
it prints an error message on stderr
its like ErrorPrintf except it looks for
the resource into utildll.dll
This function accepts the arguments in WCHAR.
*/
void ErrorOutFromResource(UINT uiStringResource, ...)
{
WCHAR szBufferString[512];
WCHAR szBufferMessage[1024];
va_list args;
va_start( args, uiStringResource);
if (GetResourceStringFromUtilDll(uiStringResource, szBufferString, 512))
{
vswprintf( szBufferMessage, szBufferString, args );
My_fwprintf( stderr, szBufferMessage);
}
else
{
fwprintf( stderr, L"ErrorOutFromResource:GetResourceStringFromUtilDll failed, Error %ld\n", GetLastError());
PutStdErr( GetLastError(), 0 );
}
va_end(args);
}
int
PutMsg(unsigned int MsgNum, unsigned int NumOfArgs, va_list *arglist);
/*******************************************************************************
*
* CalculateCrc16
*
* Calculates a 16-bit CRC of the specified buffer.
*
* ENTRY:
* pBuffer (input)
* Points to buffer to calculate CRC for.
* length (input)
* Length in bytes of the buffer.
*
* EXIT:
* (USHORT)
* The 16-bit CRC of the buffer.
*
******************************************************************************/
/*
* updcrc macro derived from article Copyright (C) 1986 Stephen Satchell.
* NOTE: First argument must be in range 0 to 255.
* Second argument is referenced twice.
*
* Programmers may incorporate any or all code into their programs,
* giving proper credit within the source. Publication of the
* source routines is permitted so long as proper credit is given
* to Stephen Satchell, Satchell Evaluations and Chuck Forsberg,
* Omen Technology.
*/
#define updcrc(cp, crc) ( crctab[((crc >> 8) & 255)] ^ (crc << 8) ^ cp)
/* crctab calculated by Mark G. Mendel, Network Systems Corporation */
unsigned short crctab[256] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
};
USHORT WINAPI
CalculateCrc16( PBYTE pBuffer,
USHORT length )
{
USHORT Crc = 0;
USHORT Data;
while ( length-- ) {
Data = (USHORT) *pBuffer++;
Crc = updcrc( Data, Crc );
}
return(Crc);
} /* CalculateCrc16() */
/*****************************************************************************
*
* ExecProgram
* Build a command line argument string and execute a program.
*
* ENTRY:
* pProgCall (input)
* ptr to PROGRAMCALL structure with program to execute.
* argc (input)
* count of the command line arguments.
* argv (input)
* vector of strings containing the command line arguments.
*
* EXIT:
* (int)
* 0 for success; 1 for error. An error message will have already
* been output on error.
*
*****************************************************************************/
#define ARGS_LEN 512 // maximum # of characters on command line
// for CreateProcess() call.
INT WINAPI
ExecProgram( PPROGRAMCALL pProgCall,
INT argc,
WCHAR **argv )
{
int count;
WCHAR program[50];
PWCHAR pCurrArg;
STARTUPINFO StartInfo;
PROCESS_INFORMATION ProcInfo;
BOOL flag;
DWORD Status;
WCHAR wszFullPath[MAX_PATH]; //contains the full path name of the program
WCHAR wszCmdLine[MAX_PATH + ARGS_LEN + 5]; //for the quoted string and NULL
PWSTR pwstrFilePart;
wcscpy(program, pProgCall->Program);
//
//Fix 330770 TS: Suspicious CreateProcess call using no program name might execute c:\program.exe AdamO 02/28/2001
//get the full path of the program
//search in the same way as createprocess would
//
if (!SearchPath(NULL, program, NULL, MAX_PATH, wszFullPath, &pwstrFilePart)) {
ErrorOutFromResource(IDS_TS_SYS_UTIL_NOT_FOUND, program);
// fwprintf(stderr, L"Terminal Server System Utility %s Not Found\n", program);
return(1);
}
//
//create the command line args
//
wcscpy(wszCmdLine, L"\"");
wcscat(wszCmdLine, wszFullPath);
wcscat(wszCmdLine, L"\"");
if (pProgCall->Args != NULL) {
wcscat(wszCmdLine, L" ");
if ( (wcslen(pProgCall->Args) + wcslen(wszCmdLine) + 3) > sizeof(wszCmdLine)) {
// IDS_MAX_CMDLINE_EXCEEDED
ErrorOutFromResource(IDS_MAX_CMDLINE_EXCEEDED);
// fwprintf(stderr, L"Maximum command line length exceeded\n");
return(1);
}
wcscat(wszCmdLine, pProgCall->Args);
}
for (count = 0; count < argc; count++) {
pCurrArg = argv[count];
if ( (int)(wcslen(pCurrArg) + wcslen(wszCmdLine) + 3) > sizeof(wszCmdLine) ) {
// IDS_MAX_CMDLINE_EXCEEDED
ErrorOutFromResource(IDS_MAX_CMDLINE_EXCEEDED);
// fwprintf(stderr, L"Maximum command line length exceeded\n");
return(1);
}
wcscat(wszCmdLine, L" ");
wcscat(wszCmdLine, pCurrArg);
}
/*
* Setup the NT CreateProcess parameters
*/
memset( &StartInfo, 0, sizeof(StartInfo) );
StartInfo.cb = sizeof(STARTUPINFO);
StartInfo.lpReserved = NULL;
StartInfo.lpTitle = NULL; // Use the program name
StartInfo.dwFlags = 0; // no extra flags
StartInfo.cbReserved2 = 0;
StartInfo.lpReserved2 = NULL;
flag = CreateProcess(wszFullPath, // full path of the program
wszCmdLine, // arguments
NULL, // lpsaProcess
NULL, // lpsaThread
TRUE, // Allow handles to be inherited
0, // No additional creation flags
NULL, // inherit parent environment block
NULL, // inherit parent directory
&StartInfo,
&ProcInfo);
if ( !flag ) {
Status = GetLastError();
if(Status == ERROR_FILE_NOT_FOUND) {
ErrorOutFromResource(IDS_TS_SYS_UTIL_NOT_FOUND, program);
// fwprintf(stderr, L"Terminal Server System Utility %s Not Found\n", program);
return(1);
} else if ( Status == ERROR_INVALID_NAME ) {
ErrorOutFromResource(IDS_BAD_INTERNAL_PROGNAME, program, wszCmdLine);
// fwprintf(stderr, L"Bad Internal Program Name :%s:, args :%s:\n", program, wszCmdLine);
return(1);
}
ErrorOutFromResource(IDS_CREATEPROCESS_FAILED, Status);
// fwprintf(stderr, L"CreateProcess Failed, Status %u\n", Status);
return(1);
}
/*
* Wait for the process to terminate
*/
Status = WaitForSingleObject(ProcInfo.hProcess, INFINITE);
if ( Status == WAIT_FAILED ) {
Status = GetLastError();
ErrorOutFromResource(IDS_WAITFORSINGLEOBJECT_FAILED, Status);
// fwprintf(stderr, L"WaitForSingle Object Failed, Status %u\n", Status);
return(1);
}
/*
* Close the process and thread handles
*/
CloseHandle(ProcInfo.hThread);
CloseHandle(ProcInfo.hProcess);
return(0);
} /* ExecProgram() */
/*****************************************************************************
*
* ProgramUsage
* Output a standard 'usage' message for the given program.
*
* ENTRY:
* pProgramName (input)
* Points to string of program's name.
* pProgramCommands (input)
* Points to an array of PROGRAMCALL structures defining the
* valid commands for the program. The last element in the array
* will contain all 0 or NULL items.
* fError (input)
* If TRUE, will output message with fwprintf to stderr; otherwise,
* will output message to stdout via wprintf.
*
* EXIT:
*
* Only commands not flagged as 'alias' commands will be output in the
* usage message.
*
*****************************************************************************/
VOID WINAPI
ProgramUsage( LPCWSTR pProgramName,
PPROGRAMCALL pProgramCommands,
BOOLEAN fError )
{
WCHAR szUsage[83]; // 80 characters per line + newline chars & null
PPROGRAMCALL pProg;
BOOL bFirst;
int i, namelen = wcslen(pProgramName);
i = wsprintf(szUsage, L"%s {", pProgramName);
for ( pProg = pProgramCommands->pFirst, bFirst = TRUE;
pProg != NULL;
pProg = pProg->pNext ) {
if ( !pProg->fAlias ) {
if ( (i + wcslen(pProg->Command) + (bFirst ? 1 : 3)) >= 80 ) {
wcscat(szUsage, L"\n");
if ( fError )
My_fwprintf(stderr, szUsage);
else
My_wprintf(szUsage);
bFirst = TRUE;
for ( i=0; i < namelen; i++)
szUsage[i] = L' ';
}
i += wsprintf( &(szUsage[i]),
bFirst ? L" %s" : L" | %s",
pProg->Command );
bFirst = FALSE;
}
}
wcscat(szUsage, L" }\n");
if ( fError )
My_fwprintf(stderr, szUsage);
else
My_wprintf(szUsage);
}
/*******************************************************************************
* ScanPrintfString
* Scans a string, detects any % and double it
* (Use it for any string argument before calling ErrorPrintf)
*
*******************************************************************************/
#define PERCENTCHAR L'%'
BOOLEAN ScanPrintfString(PWCHAR pSource, PWCHAR *ppDest)
{
ULONG i, j = 0, k = 0, n = 0;
ULONG SourceLength, DestLength;
PWCHAR pDest = NULL;
if ( (pSource == 0) || (ppDest == 0))
{
SetLastError(ERROR_INVALID_PARAMETER);
return (FALSE);
}
SourceLength = wcslen(pSource);
for (i = 0; i < SourceLength; i++)
{
if (pSource[i] == PERCENTCHAR)
{
n++;
}
}
if (n != 0) // at least one %, we need to build a new string.
{
pDest = (PWCHAR)malloc((SourceLength + n + 1) * sizeof(WCHAR));
*ppDest = pDest;
if (pDest == NULL)
{
return FALSE;
}
else
{
//
// rescan and copy
//
for (i = 0; i < SourceLength; i++)
{
if (pSource[i] == PERCENTCHAR)
{
if ( i > j )
{
memcpy(&(pDest[k]), &(pSource[j]), (i - j) * sizeof(WCHAR));
k += (i-j);
j = i;
}
pDest[k] = PERCENTCHAR;
pDest[k+1] = PERCENTCHAR;
k += 2;
j++;
}
}
if (i > j)
{
memcpy(&(pDest[k]), &(pSource[j]), (i - j) * sizeof(WCHAR));
}
pDest[SourceLength + n] = L'\0';
}
}
else // OK pSource is fine; no need of a new string.
{
*ppDest = NULL;
}
return (TRUE);
}
/*******************************************************************************
*
* Message
* Display a message to stdout with variable arguments. Message
* format string comes from the application resources.
*
* ENTRY:
* nResourceID (input)
* Resource ID of the format string to use in the message.
* ... (input)
* Optional additional arguments to be used with format string.
*
* EXIT:
*
******************************************************************************/
VOID WINAPI
Message( int nResourceID, ...)
{
WCHAR sz1[256], sz2[512];
va_list args;
va_start( args, nResourceID );
if ( LoadString( NULL, nResourceID, sz1, 256 ) ) {
vswprintf( sz2, sz1, args );
My_wprintf( sz2 );
} else {
fwprintf( stderr, L"{Message(): LoadString failed, Error %ld, (0x%08X)}\n",
GetLastError(), GetLastError() );
}
va_end(args);
} /* Message() */
/************************************************************************************
* StringMessage
* used as a pre-routine for Message in case the argument is a single string
* (fix for bug #334374)
*
************************************************************************************/
VOID WINAPI
StringMessage(int nErrorResourceID, PWCHAR pString)
{
PWCHAR pFixedString = NULL;
if (ScanPrintfString(pString, &pFixedString) )
{
if (pFixedString != NULL)
{
Message(nErrorResourceID, pFixedString);
free(pFixedString);
}
else
{
Message(nErrorResourceID, pString);
}
}
else
{
Message(nErrorResourceID, L" ");
}
}
/************************************************************************************
* StringErrorPrintf
* used as a pre-routine for ErrorPrintf in case the argument is a single string
* (fix for bug #334374)
*
************************************************************************************/
VOID WINAPI
StringErrorPrintf(int nErrorResourceID, PWCHAR pString)
{
PWCHAR pFixedString = NULL;
if (ScanPrintfString(pString, &pFixedString) )
{
if (pFixedString != NULL)
{
ErrorPrintf(nErrorResourceID, pFixedString);
free(pFixedString);
}
else
{
ErrorPrintf(nErrorResourceID, pString);
}
}
else
{
ErrorPrintf(nErrorResourceID, L" ");
}
}
/************************************************************************************
* StringDwordMessage
* used as a pre-routine for Message in case the argument are:
* a single string + a ulong
* (fix for bug #334374)
*
************************************************************************************/
VOID WINAPI
StringDwordMessage(int nErrorResourceID, PWCHAR pString, DWORD Num)
{
PWCHAR pFixedString = NULL;
if (ScanPrintfString(pString, &pFixedString) )
{
if (pFixedString != NULL)
{
Message(nErrorResourceID, pFixedString, Num);
free(pFixedString);
}
else
{
Message(nErrorResourceID, pString, Num);
}
}
else
{
Message(nErrorResourceID, L" ", Num);
}
}
/************************************************************************************
* DwordStringMessage
* used as a pre-routine for Message in case the argument are:
* a single string + a ulong
* (fix for bug #334374)
*
************************************************************************************/
VOID WINAPI
DwordStringMessage(int nErrorResourceID, DWORD Num, PWCHAR pString)
{
PWCHAR pFixedString = NULL;
if (ScanPrintfString(pString, &pFixedString) )
{
if (pFixedString != NULL)
{
Message(nErrorResourceID, Num, pFixedString);
free(pFixedString);
}
else
{
Message(nErrorResourceID, Num, pString);
}
}
else
{
Message(nErrorResourceID, Num, L" ");
}
}
/************************************************************************************
* StringDwordErrorPrintf
* used as a pre-routine for ErrorPrintf in case the argument are:
* a single string + a ulong
* (fix for bug #334374)
*
************************************************************************************/
VOID WINAPI
StringDwordErrorPrintf(int nErrorResourceID, PWCHAR pString, DWORD Num)
{
PWCHAR pFixedString = NULL;
if (ScanPrintfString(pString, &pFixedString) )
{
if (pFixedString != NULL)
{
ErrorPrintf(nErrorResourceID, pFixedString, Num);
free(pFixedString);
}
else
{
ErrorPrintf(nErrorResourceID, pString, Num);
}
}
else
{
ErrorPrintf(nErrorResourceID, L" ", Num);
}
}
/*******************************************************************************
*
* ErrorPrintf
* Output an error message to stderr with variable arguments. Message
* format string comes from the application resources.
*
* ENTRY:
* nErrorResourceID (input)
* Resource ID of the format string to use in the error message.
* ... (input)
* Optional additional arguments to be used with format string.
*
* EXIT:
*
******************************************************************************/
VOID WINAPI
ErrorPrintf( int nErrorResourceID, ...)
{
WCHAR sz1[256], sz2[512];
va_list args;
va_start( args, nErrorResourceID );
if ( LoadString( NULL, nErrorResourceID, sz1, 256 ) ) {
vswprintf( sz2, sz1, args );
My_fwprintf( stderr, sz2 );
} else {
fwprintf( stderr, L"{ErrorPrintf(): LoadString failed, Error %ld, (0x%08X)}\n",
GetLastError(), GetLastError() );
PutStdErr( GetLastError(), 0 );
}
va_end(args);
} /* ErrorPrintf() */
/*******************************************************************************
*
* TruncateString
*
* This routine truncates given string with elipsis '...' suffix, if needed.
*
*
* ENTRY:
* pString (input/output)
* pointer to string to truncate
* MaxLength (input)
* maximum length of string
*
* EXIT:
* nothing
*
******************************************************************************/
VOID WINAPI
TruncateString( PWCHAR pString, int MaxLength )
{
/*
* if string is too long, trucate it
*/
if ( (int)wcslen(pString) > MaxLength && MaxLength > 2 ) {
wcscpy( pString + MaxLength - 3, L"..." );
}
} /* TruncateString() */
/*******************************************************************************
*
* EnumerateDevices
*
* Perform PD device enumeration for the specified PD DLL.
*
* ENTRY:
* pDllName (input)
* Pointer to DLLNAME string specifying the PD DLL to enumerate.
* pEntries (output)
* Points to variable to return number of devices that were enumerated.
*
* EXIT:
* (PPDPARAMS) Points to a malloc()'ed PDPARAMS array containing the
* enumeration results if sucessful. The caller must perform
* free of this array when done. NULL if error.
*
******************************************************************************/
/*
* Typedefs for PdEnumerate function (from ...WINDOWS\INC\CITRIX\PDAPI.H)
*/
typedef NTSTATUS (APIENTRY * PPDENUMERATE)(PULONG, PPDPARAMS, PULONG);
#define INITIAL_ENUMERATION_COUNT 30
PPDPARAMS WINAPI
EnumerateDevices( PDLLNAME pDllName,
PULONG pEntries )
{
PPDENUMERATE pPdEnumerate;
HANDLE Handle;
ULONG ByteCount;
NTSTATUS Status;
int i;
PPDPARAMSW pPdParams = NULL;
/*
* Load the specified PD DLL.
*/
if ( (Handle = LoadLibrary(pDllName)) == NULL ) {
ErrorOutFromResource(IDS_DEVICE_ENUM_CANT_LOAD, pDllName);
// fwprintf(
// stderr,
// L"Device enumeration failure:\n\tCan't load the %s DLL for device enumeration\n",
// pDllName );
goto CantLoad;
}
/*
* Get the PD enumeration function's load entry pointer.
*/
if ( (pPdEnumerate =
(PPDENUMERATE)GetProcAddress((HMODULE)Handle, "PdEnumerate"))
== NULL ) {
ErrorOutFromResource(IDS_DEVENUM_NO_ENTRY_POINT, pDllName);
// fwprintf(
// stderr,
// L"Device enumeration failure:\n\tDLL %s has no enumeration entry point\n",
// pDllName );
goto EnumerateMissing;
}
/*
* Call enumerate in loop till we hit enough buffer entries to handle
* a complete enumeration.
*/
for ( i = INITIAL_ENUMERATION_COUNT; ; i *= 2 ) {
if ( pPdParams == NULL ) {
pPdParams =
(PPDPARAMS)malloc(ByteCount = (sizeof(PDPARAMS) * i));
} else {
free(pPdParams);
pPdParams =
(PPDPARAMS)malloc(ByteCount = (sizeof(PDPARAMS) * i));
}
if ( pPdParams == NULL ) {
ErrorOutFromResource(IDS_ERROR_MEMORY);
// fwprintf(stderr, L"Error allocating memory\n");
goto OutOfMemory;
}
/*
* Perform enumeration and break loop if successful.
*/
if ( (Status = (*pPdEnumerate)(pEntries, pPdParams, &ByteCount))
== STATUS_SUCCESS )
break;
/*
* If we received any other error other than 'buffer too small',
* complain and quit.
*/
if ( Status != STATUS_BUFFER_TOO_SMALL ) {
ErrorOutFromResource(IDS_DEVICE_ENUM_FAILED, pDllName, Status);
// fwprintf(
// stderr,
// L"Device enumeration failure\n\tDLL %s, Error 0x%08lX\n",
// pDllName, Status );
goto BadEnumerate;
}
}
/*
* Close the DLL handle and return the PDPARAMS pointer.
*/
CloseHandle(Handle);
return(pPdParams);
/*-------------------------------------
* Error cleanup and return
*/
BadEnumerate:
free(pPdParams);
OutOfMemory:
EnumerateMissing:
CloseHandle( Handle );
CantLoad:
return(NULL);
} /* EnumerateDevices() */
/******************************************************************************
*
* wfopen
*
* UNICODE version of fopen
*
* ENTRY:
* filename (input)
* UNICODE filename to open.
* mode (input)
* UNICODE file open mode string.
*
* EXIT:
* Pointer to FILE or NULL if open error.
*
*****************************************************************************/
FILE * WINAPI
wfopen( LPCWSTR filename, LPCWSTR mode )
{
PCHAR FileBuf, ModeBuf;
FILE *pFile;
if ( !(FileBuf = (PCHAR)malloc((wcslen(filename)+1) * sizeof(CHAR))) )
goto BadFileBufAlloc;
if ( !(ModeBuf = (PCHAR)malloc((wcslen(mode)+1) * sizeof(CHAR))) )
goto BadModeBufAlloc;
/*
* Convert UNICODE strings to ANSI and call ANSI fopen.
*/
wcstombs(FileBuf, filename, wcslen(filename)+1);
wcstombs(ModeBuf, mode, wcslen(mode)+1);
pFile = fopen(FileBuf, ModeBuf);
/*
* Clean up and return
*/
free(FileBuf);
free(ModeBuf);
return(pFile);
/*-------------------------------------
* Error cleanup and return
*/
BadModeBufAlloc:
free(FileBuf);
BadFileBufAlloc:
return(NULL);
} /* wfopen() */
/******************************************************************************
*
* wfgets
*
* UNICODE version of fgets
*
* ENTRY:
* Buffer (output)
* Buffer to place string retreived from stream
* Len (input)
* Maximum number of WCHARs in buffer.
* Stream (input)
* STDIO file stream for input
*
* EXIT:
* Pointer to Buffer or NULL.
*
*****************************************************************************/
PWCHAR WINAPI
wfgets( PWCHAR Buffer, int Len, FILE *Stream )
{
PCHAR AnsiBuf, pRet;
int count;
if ( !(AnsiBuf = (PCHAR)malloc(Len * sizeof(CHAR))) )
goto BadAnsiBufAlloc;
/*
* Get the ANSI version of the string from the stream
*/
if ( !(pRet = fgets(AnsiBuf, Len, Stream)) )
goto NullFgets;
/*
* Convert to UNICODE string in user's buffer.
*/
count = mbstowcs(Buffer, AnsiBuf, strlen(AnsiBuf)+1);
/*
* Clean up and return
*/
free(AnsiBuf);
return(Buffer);
/*-------------------------------------
* Error cleanup and return
*/
NullFgets:
free(AnsiBuf);
BadAnsiBufAlloc:
return(NULL);
} /* wfgets() */
/*** PutStdErr - Print a message to STDERR
*
* Purpose:
* Calls PutMsg sending STDERR as the handle to which the message
* will be written.
*
* int PutStdErr(unsigned MsgNum, unsigned NumOfArgs, ...)
*
* Args:
* MsgNum - the number of the message to print
* NumOfArgs - the number of total arguments
* ... - the additonal arguments for the message
*
* Returns:
* Return value from PutMsg() M026
*
*/
int WINAPI
PutStdErr(unsigned int MsgNum, unsigned int NumOfArgs, ...)
{
int Result;
va_list arglist;
va_start(arglist, NumOfArgs);
Result = PutMsg(MsgNum, NumOfArgs, &arglist);
va_end(arglist);
return Result;
}
int
FindMsg(unsigned MsgNum, PTCHAR NullArg, unsigned NumOfArgs, va_list *arglist)
{
unsigned msglen;
DWORD msgsource;
TCHAR *Inserts[ 2 ];
CHAR numbuf[ 32 ];
TCHAR wnumbuf[ 32 ];
//
// find message without doing argument substitution
//
if (MsgNum == ERROR_MR_MID_NOT_FOUND) {
msglen = 0;
}
else {
#ifdef LATER
msgsource = MsgNum >= IDS_ERROR_MALLOC ?
FORMAT_MESSAGE_FROM_HMODULE :
FORMAT_MESSAGE_FROM_SYSTEM;
#endif
msgsource = FORMAT_MESSAGE_FROM_SYSTEM;
msglen = FormatMessage(msgsource | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
MsgNum,
0,
MsgBuf,
MAXCBMSGBUFFER,
NULL
);
if (msglen == 0) {
if (NtDllHandle == NULL) {
NtDllHandle = GetModuleHandle( TEXT("NTDLL") );
}
msgsource = FORMAT_MESSAGE_FROM_HMODULE;
msglen = FormatMessage(msgsource | FORMAT_MESSAGE_IGNORE_INSERTS,
(LPVOID)NtDllHandle,
MsgNum,
0,
MsgBuf,
MAXCBMSGBUFFER,
NULL
);
}
}
if (msglen == 0) {
//
// didn't find message
//
msgsource = FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_ARGUMENT_ARRAY;
_ultoa( MsgNum, numbuf, 16 );
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, numbuf, -1, wnumbuf, 32);
Inserts[ 0 ]= wnumbuf;
#ifdef LATER
Inserts[ 1 ]= (MsgNum >= IDS_ERROR_MALLOC ? TEXT("Application") : TEXT("System"));
#endif
Inserts[ 1 ]= TEXT("System");
MsgNum = ERROR_MR_MID_NOT_FOUND;
msglen = FormatMessage(msgsource,
NULL,
MsgNum,
0,
MsgBuf,
MAXCBMSGBUFFER,
(va_list *)Inserts
);
}
else {
// see how many arguments are expected and make sure we have enough
PTCHAR tmp;
ULONG count;
tmp=MsgBuf;
count = 0;
while (tmp = mystrchr(tmp, PERCENT)) {
tmp++;
if (*tmp >= TEXT('1') && *tmp <= TEXT('9')) {
count += 1;
}
else if (*tmp == PERCENT) {
tmp++;
}
}
if (count > NumOfArgs) {
PTCHAR *LocalArgList;
ULONG i;
LocalArgList = (PTCHAR*)malloc(sizeof(PTCHAR) * count);
if( LocalArgList == NULL )
{
msglen = 0;
}
else
{
for (i=0; i<count; i++)
{
if (i < NumOfArgs)
{
LocalArgList[i] = (PTCHAR)(ULONG_PTR)va_arg( *arglist, ULONG );
}
else
{
LocalArgList[i] = NullArg;
}
}
msglen = FormatMessage(msgsource | FORMAT_MESSAGE_ARGUMENT_ARRAY,
NULL,
MsgNum,
0,
MsgBuf,
MAXCBMSGBUFFER,
(va_list *)LocalArgList
);
free(LocalArgList);
}
}
else {
msglen = FormatMessage(msgsource,
NULL,
MsgNum,
0,
MsgBuf,
MAXCBMSGBUFFER,
arglist
);
}
}
return msglen;
}
/*** PutMsg - Print a message to a handle
*
* Purpose:
* PutMsg is the work routine which interfaces command.com with the
* DOS message retriever. This routine is called by PutStdOut and
* PutStdErr.
*
* int PutMsg(unsigned MsgNum, unsigned Handle, unsigned NumOfArgs, ...)
*
* Args:
* MsgNum - the number of the message to print
* NumOfArgs - the number of total arguments
* Handle - the handle to print to
* Arg1 [Arg2...] - the additonal arguments for the message
*
* Returns:
* Return value from DOSPUTMESSAGE M026
*
* Notes:
* - PutMsg builds an argument table which is passed to DOSGETMESSAGE;
* this table contains the variable information which the DOS routine
* inserts into the message.
* - If more than one Arg is sent into PutMsg, it (or they) are taken
* from the stack in the first for loop.
* - M020 MsgBuf is a static array of 2K length. It is temporary and
* will be replaced by a more efficient method when decided upon.
*
*/
int
PutMsg(unsigned int MsgNum, unsigned int NumOfArgs, va_list *arglist)
{
unsigned msglen;
PTCHAR NullArg = TEXT(" ");
WCHAR szErrorNo[256];
if (GetResourceStringFromUtilDll(IDS_ERROR_NUMBER, szErrorNo, 256))
{
fwprintf( stderr, szErrorNo, MsgNum );
}
msglen = FindMsg(MsgNum,NullArg,NumOfArgs,arglist);
My_fwprintf( stderr, MsgBuf );
return NO_ERROR;
}
/***
* mystrchr(string, c) - search a string for a character
*
* mystrchr will search through string and return a pointer to the first
* occurance of the character c. This version of mystrchr knows about
* double byte characters. Note that c must be a single byte character.
*
*/
TCHAR *
mystrchr(TCHAR const *string, int c)
{
/* handle null seperatly to make main loop easier to code */
if (string == NULL)
return(NULL);
if (c == NULLC)
return((TCHAR *)(string + wcslen(string)));
return wcschr( string, (TCHAR)c );
}
/***
* My_wprintf(format) - print formatted data
*
* Prints Unicode formatted string to console window using WriteConsoleW.
* Note: This My_wprintf() is used to workaround the problem in c-runtime
* which looks up LC_CTYPE even for Unicode string.
*
*/
int __cdecl
My_wprintf(
const wchar_t *format,
...
)
{
DWORD cchWChar;
va_list args;
va_start( args, format );
cchWChar = My_vfwprintf(stdout, format, args);
va_end(args);
return cchWChar;
}
/***
* My_fwprintf(stream, format) - print formatted data
*
* Prints Unicode formatted string to console window using WriteConsoleW.
* Note: This My_fwprintf() is used to workaround the problem in c-runtime
* which looks up LC_CTYPE even for Unicode string.
*
*/
int __cdecl
My_fwprintf(
FILE *str,
const wchar_t *format,
...
)
{
DWORD cchWChar;
va_list args;
va_start( args, format );
cchWChar = My_vfwprintf(str, format, args);
va_end(args);
return cchWChar;
}
int __cdecl
My_vfwprintf(
FILE *str,
const wchar_t *format,
va_list argptr
)
{
HANDLE hOut;
if (str == stderr) {
hOut = GetStdHandle(STD_ERROR_HANDLE);
}
else {
hOut = GetStdHandle(STD_OUTPUT_HANDLE);
}
if ((GetFileType(hOut) & ~FILE_TYPE_REMOTE) == FILE_TYPE_CHAR) {
DWORD cchWChar;
WCHAR szBufferMessage[1024];
vswprintf( szBufferMessage, format, argptr );
cchWChar = wcslen(szBufferMessage);
WriteConsoleW(hOut, szBufferMessage, cchWChar, &cchWChar, NULL);
return cchWChar;
}
return vfwprintf(str, format, argptr);
}